4. A trapezoidal channel carrying a discharge of 0.75 m3/s is to be lined with concrete to avoid seepage problems. Calcu
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4. A trapezoidal channel carrying a discharge of 0.75 m3/s is to be lined with concrete to avoid seepage problems. Calcu
4. A trapezoidal channel carrying a discharge of 0.75 m3/s is to be lined with concrete to avoid seepage problems. Calculate the channels dimensions which will minimise the amount of concrete when Manning's n for concrete is 0.015 and the channel slope is 1 in 1250 (for a hexagonal channel d=0.37 m; b=0.8 m. Note that other answers are possible depending on choice of side slope).
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